Hepta-coordinated heteroleptic derivatives of zirconium(IV): Synthesis, structural characterization and ring opening polymerization of ε-caprolactone
作者:Giri Prasanth Vuppalapati、Ravindranath S. Rathore、Madhvesh Pathak、Sathiyanarayanan Kulathu Iyer
DOI:10.1016/j.poly.2016.01.035
日期:2016.3
H2L4 = C17H13NO2) and β-diketones (acetylacetone/dibenzoylmethane) in a 1:1:2 stoichiometry using dry benzene and ethanol as solvents. All these newly synthesized solid derivatives were fairly soluble in common organic solvents. They were characterized by elemental analyses, FTIR and NMR (1H and 13C) spectral studies. Single crystal XRD data of complexes 1, 2, 3 and 5 indicated the hepta-coordination and monomeric
该一系列的类型的锆(IV)的新庚协调杂衍生物的[(CH 3 COCHCOCH 3)2 ZRL](1,3,5和7)和[(C 6 H ^ 5 COCHCOC 6 ħ 5)2 ZRL ](2,4,6和8)(L =双阴离子[ONO] -tridentate辅助配体)通过的Zr(OPR反应定量合成我)4 ·镨我OH与三齿席夫碱配体ħ 2大号x(H 2 L 1 = C 13 H 11 NO 2 ; H 2 L 2 = C 13 H 10 BrNO 2 ; H 2 L 3 = C 14 H 13 NO 3 ; H 2 L 4 = C 17 H 13 NO 2)和β-二酮(乙酰丙酮/二苯甲酰甲烷)以1:1:2的化学计量比,以干燥的苯和乙醇为溶剂。所有这些新合成的固体衍生物都相当溶于普通的有机溶剂。它们通过元素分析,FTIR和NMR(1 H和13 C)光谱研究进行了表征。复合物的单晶X射线衍射数据1
Electrochemical synthesis and structural characterization of nickel(II) and copper(II) complexes of tridentate schiff bases: Molecular structure of the five-coordinated copper(II) complex: 1,10-phenanthroline {2-[(2-oxyphenyl)iminomethyl]phenolato}copper(II)
作者:Elena Labisbal、Jose A. Garcia-Vazquez、Jaime Romero、Sofia Picos、Antonio Sousa、Alfonso Castiñeiras、Cäcilia Maichle-Mössmer
DOI:10.1016/0277-5387(94)00292-m
日期:1995.3
of metal anodes (copper and nickel) in acetonitrile solutions of Schiff bases (H2L) (synthesized from salicylaldehydes and 2-aminophenols) gave CuL and NiL complexes. When 1,10-phenanthroline (phen) or 2,2′-bipyridine (bipy) was added to the electrolytic cell, the mixedcomplexes CuLL′ and NiLL′ (L′ = phen or bipy) were obtained. The crystal structure of 1,10-phenanthroline 2-[(2-oxyphenyl)iminomet
A series of functionalized 2,3-dihydro-1,4-benzoxazines were obtained in moderate to excellent yields via domino [5 + 1] annulations of 2-halo-1,3-dicarbonyl compounds 2 with imines 1 under mild conditions and the application of this method in the synthesis of bioactive analogues, such as functionalized tetracyclic-1,4-benzoxazines which contain two new heterocyclic rings and one quaternary carbon
Metal specific variable binding modes in Schiff base complexes — facile synthesis and crystal structure of anionic bis-N-(2-oxyethyl-5-bromosalicylal-diminato) cobalt(III)
Abstract The Schiff bases N-(2-hydroxyethyl)-X-salicylaldimine (X=H, Br) which show monobasic bidentate binding mode in their copper(II) complexes, in contrast offer dibasic tridentate chelation and almost spontaneous reaction leading to the synthesis of anionic bis-tridentate cobalt(III) chelates. On the other hand the Schiff bases N-(2-hydroxyphenyl)-X-salicylaldimine (X=H, Br) which are in dibasic